Question $03[10$ marks$]$

For the slope shown in Figure $3,$ find the factor of safety against sliding for the trial slipe surface $AC.$ Use the ordinary method of slices.

$=16k\frac{N}{m^3}$

$c^{\text{'}}=20k\frac{N}{m^2}$

${}^{\text{'}}=20$

Figure $3$

The area $(A_n)$ and width $(b_n)$ of each slice are given below:

$\backslash$table$[[$Slice no$.(n),1,2,3,4,5,6,7],[A_n(m^2),1\mathrm{.}4,18\mathrm{.}4,27\mathrm{.}2,27\mathrm{.}2,24\mathrm{.}4,16\mathrm{.}8,4\mathrm{.}16],[b_n(m),1,4,4,4,4,4,3\mathrm{.}2]]$